Once you have the place under contract you are time limited.

Have your notified your insurance agent/company that you are no longer living in the property and that it's under renovation?

Get the house hack under contract and closed first. 

If they do, you may have a chance under the scenario you're proposing - if they share your concern for it's condition (although that seems unlikely since they've been living with it the way it is for some time, it seems).If you own it, it's pretty lowbrow to expect a neighbor to invest in your property. 

Knowing the average bP buy and hold investor this type of information would be for advanced investors that deal in the back end of real estate not the front end like most who just want to buy a house for under market rehab refi rent or flip. 

I'm thinking I can get a nice purchase price if I under cut the banks by 1% and offer 15% required down as opposed to the traditional 20%.

basically if anyone has any tips when it comes to researching plots of land in order to make the right purchase i would greatly appreciate it get with a realtor. we underwrite land at no more than 10% of after built value. in our market we build under the average new build value which is about 515k. we like to be around 420-450k and smaller footprint about 1500 sq ft with attached garages. we build close to urban core where everyone wants to live and net migrations match up. but suburban is fine. if you give more context I can help but in most markets land is a buyers market. most people aren't looking at it or buying it. 

Also, focus on 2 years of job/income stability.Class D Properties:Cashflow vs Appreciation: Typically, all cashflow with little, maybe even negative, relative rent & value appreciationVacancy Est: 20%+ should be used to cover nonpayment, evictions & damages.Tenant Pool: majority will have FICO scores under 560 (almost 30% probability of default), little to no good tradelines, lots of collections & chargeoffs, recent evictions.

Quote from @Ankit Lodha: I have a home under our names.

If you are set on closing under your personal name, you definitely want to check with your lender on that during the initial fact-finding stage.